Interchange (road)

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Diamond style

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Cloverleaf style

An interchange is a place where two freeways meet, or where a freeway and another road meet. An interchange has two levels so traffic going through does not meet. Different levels are connected by ramps. There are many different types of freeway interchanges. The two most common types of freeway interchanges are the diamond interchange and the cloverleaf interchange:

• A diamond interchange has four ramps that enter and leave the freeway at a small angle and meet the non-freeway at almost right angles. These ramps at the non-freeway can be controlled through stop signs or traffic signals. The name comes from the diamond-like shape.
• A cloverleaf interchange has eight ramps that handle all traffic without stop signs or traffic lights. To turn left, traffic goes in a 270° turn. The name comes from the four-leaf clover-like shape.

Interchange (road) Media

• High Five.jpg

  The High Five in Dallas, Texas. This is a complicated five-level stack interchange, due to the proximity of frontage roads and segregated high-occupancy vehicle lanes. This hybrid design is based on parts of a four-level stack for highways, with a three-level-diamond interchange to handle the frontage roads.32°55′27.2″N 96°45′50.0″W

• Cruce de Calzada de Tlalpan y Circuito Interior Río Churubusco desde un dron.webm

  Video of the interchange of Calzada de Tlalpan and Circuito Interior Río Churubusco, Mexico City.

• Lakalaivan eritasoliittymä 1.jpg

  An aerial view of the Lakalaiva interchange in the Tampere Ring Road between the Highway 3 (E12) and Highway 9 (E63) near city of Tampere.61°27′46″N 23°46′10″E

• M0 - 4-es kereszteződés-cropped.png

  An interchange between the M0 and M4 motorways outside Budapest, showcases directional, semi-directional, and loop ramps.47°24′18″N 19°18′55″E

• Light Horse Interchange (aerial view).jpg

  The Light Horse Interchange in Sydney, the largest in Australia.33°47′53″S 150°51′15″E

• Wezelsosnicafromthesky.JPG

  The Gliwice-Sośnica interchange, Poland. 50.261249°N 18.720944°E / 50.261249; 18.720944

• APD-40cloverleaf.jpg

  A full cloverleaf interchange between APD-40 and U.S. Route 64 near Cleveland, Tennessee 35°08′59.4″N 84°50′52.3″W

• Shanghai, China (Unsplash).jpg

  A multi-level stack interchange in Jing'an, Shanghai, China. 31°13′27.7″N 121°28′09.0″E

• CloverStackIntersection.svg

  Clover-Turbine intersection based on Anava intersection on roads 1 and 431 in Israel. Drawing template is based on As-koniczynka2.svg by User:Orem

• Autobunnskräiz-RO-A201 cropped.jpg

  A turbine interchange between A201 and the Brussels Ring (R0) in Brussels50°53′30.1″N 4°27′15.3″E